ISL6841IUZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High-performance synchronous buck controller - Designed for low-voltage applications - Provides high efficiency and accurate regulation - Suitable for a wide range of power supply designs

Package: 16-Lead QFN (Quad Flat No-Lead) package

Essence: The ISL6841IUZ-T is a high-performance synchronous buck controller that offers efficient power management solutions for various low-voltage applications.

Packaging/Quantity: The ISL6841IUZ-T is available in a 16-Lead QFN package. The quantity per package may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 14V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 20A
• Switching Frequency: Up to 1MHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL6841IUZ-T has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. COMP: Compensation pin for loop stability
4. FB: Feedback voltage input
5. SS/TR: Soft-start/tracking control
6. RT: Timing resistor for oscillator frequency setting
7. CT: Timing capacitor for oscillator frequency setting
8. SYNC: Synchronization input for multiple ICs
9. PGND: Power ground reference
10. BOOT: Bootstrap capacitor connection for high-side MOSFET
11. LX: Switch node connection
12. PHASE: Phase node connection
13. EN: Enable pin for device operation
14. OCSET: Overcurrent protection threshold setting
15. SS/TR: Soft-start/tracking control
16. VCC: Power supply input

Functional Features

• High efficiency and accurate regulation
• Adjustable switching frequency for design flexibility
• Overcurrent protection with adjustable threshold
• Soft-start and tracking control for controlled startup
• Synchronization capability for multiple ICs in parallel operation

Advantages and Disadvantages

Advantages: - High-performance power management solution - Wide input voltage range - Efficient and accurate regulation - Flexible design options with adjustable frequency - Overcurrent protection for enhanced safety - Controlled startup with soft-start and tracking control - Suitable for parallel operation with synchronization capability

Disadvantages: - Limited maximum output current (20A) - Operating temperature range may not be suitable for extreme environments

Working Principles

The ISL6841IUZ-T operates as a synchronous buck controller, regulating the output voltage by controlling the duty cycle of the high-side and low-side MOSFETs. It utilizes a feedback loop to compare the actual output voltage with the desired reference voltage and adjusts the duty cycle accordingly. The adjustable switching frequency allows designers to optimize efficiency and performance based on their specific requirements.

Detailed Application Field Plans

The ISL6841IUZ-T is commonly used in various power supply designs, including but not limited to: - DC-DC converters - Voltage regulators - Battery chargers - LED drivers - Industrial power supplies - Telecom infrastructure

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the ISL6841IUZ-T are: - LTC3855 - TPS54332 - MAX15062 - IR3899 - FAN5358

These alternative models offer similar functionalities and can be suitable replacements depending on the specific application requirements.

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